Machine for inserting fastenings



GLGODDU AND F. L. MACKENZIE.

MACH INE FOR INSERTING FASTENINGS. APPLICAUON FILED FEB. 3, NH).

1,401,949, v Patented De0.27,1921.

' i Fi .1.

UNITED STATES PATENT OFFICE.

GEoRGE GODDU, or WINGEESTER, nn FRED L. MACKENZIE, or BEVERLY, Masse- CHUSETTS, ASSIGNORS T0 UNITED SHOE MACHINERY CORPORATION, or EATER- SON, NEW JERSEY, A CORPORATION on NEW JERSEY.

MACHINE FOR 'INSERTING FASTENINGS.

Specification of Letters Patent.

Patented Dec. 27, 1921.

Application filed February 3, 1919. Serial No. 274,655.

To all 1071/0122 it may concern:

Be it known that we, GEORGE GoDDU and Fnno L. lvlaonnnzin, citizens of the United States, residing at lVinchester, in the county of Middlesex, and Beverly, in the county of Essex, respectively, and State of Massachusetts, have invented certain Improvements in lVlachines for Inserting Fastenings, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several fig ures. I

This invention relates to machines for inserting fastenings, for example, to form a seam for attaching or reinforcing pieces of shoe stock and pertains particularly to fas toning inserting machines designed to insert headed fastenings.

The invention will be herein disclosed, by way of example, as applied to a string nailing machine of the type constituting the subject-matter of the application of George Goddu and Fred L. Mackenzie, Serial No. 137,571, filed December 18, 1916. Machines of such type comprise a movable head having mounted thereon a driver for the nails and an and movable in passages formed in a throat secured to the lower end ofthe head, the awl being projected into the work and being operated by movement of the head to feed the work. The successive feeding movements of the head carry the driver pas sage of the throat into alinement with a strip of headed fastenings commonly termed a nail string lying within a recess formed in a guide on the head and commonly provided with projections on one of its sides which constitute the heads of the nails when detached from the string. The end-most nails of the nail string are successively intro duced into the driver passage of the throat by a feeding device which engages one after another the projecting heads of the nails which. after their introduction into said passage, are severed from the string and are then forced into the work by the driver. Means is also provided for guiding the work as it is fed. past the point of operation of the fastening inserting mechanism thereon.

The fastening inserting mechanism of such machines and the guiding means which serves to position the work relatively to the fastening inserting mechanism have hitherto as to cause the fastenings to be inserted into the work with their heads extending from their shanks, in the line of the seam and, by reason of the hereinbefore described arrangement of the nails in the nail string, in the same direction. It has been found, however, that a seam composed of fastenings so disposed open to the objection that a piece of work, for example, a piece of shoe stock attached to another piece of stock by such a seam may be easily ripped away from the latter by a pull exerted in the line of the seam and along the sides of the nails opposite to those from which the heads project. Such a seam consequently cannot be relied upon to hold the attached parts together securely. Metallic seams'such as have been formed by string nailing machines as previously constructed are also defective in that they detract from the flexibility of the finished shoe in consequence of the relatively small spaces afforded between the heads of adjacent nails of the seam.

An object of theinvention is to devise an improved apparatus for forminga metallic seam composed of fasteningshaving elongated heads which, while retaining the advantages of prior machines for: such purpose, will make a seam free from the defects of such seams as previously constituted. To this end, an important feature of the invention resides in'the provision of means for guiding the work during the insertion of a row of fastenings along the edge of the work, for example, a shoe, and means for in fserting fastenings having elongated heads into the shoe withthe long dimensions of their heads disposed transversely of the adjacent edge of the shoe. A seam constituted by fastenings thus disposed effectively resists any force exerted. in either direction in the line of the seam. Moreover, the flexi bility of the shoe is not appreciably impaired thereby because, by reason of the changed disposition of the fastenings, the heads of adjacent fastenings are spaced from each other bya distance suflicient to permit ready flexure of the shoe intermediate between them. In the illustrated construction, the fastenings are caused to be inserted in the above-described relation to the shoe by the provision of a throat having its fastening and driver passage elongated from the front V to the rear of the throat, and transverse to the feeding movement of the head, Stud passage in such fashion that they will be inserted into thework with their heads extended from their shanks towardthe edge of the work so that not only is the flexure of the work in the directionof the seam not interfered with, but the overhanging heads ofthe fastenings directly oppose any strain exerted in the direction in which a strain tending to separate'the attached parts is most likely to be exerted, that is, from the adjacent edge of the shoe stock. The chance of the ripping apart of the attached pieces of stock is thereby greatly reduced.

Although the invention has been 'set forth,

. by way of example, as applied to a machine of the type disclosed in the application of George Goddu and Fred L. Mackenzie above mentioned, it is, nevertheless, recognized that the invention is not restricted in its ap plication to use with machines of such type but may be employed with fastening inserting machines of other types. Moreover, the mechanical construction in which the invention is herein shown as embodied may be materially modified without departing from the principles of the invention. Accordingly,-the' invention is to be limited only as required by the claims. d

Other objects and features of the invention will appear as the description proceeds and will be pointed out'in the appended claims.

In the drawings, Figure 1 is a view in front elevation of a machine embodying the invention;

Fig. 2 is a view in perspective of the throat of the machine from the rear showing the nail controlling finger mounted in the nail passage of the throat; I

Fig. 3 is a'view of the nail string guide; Fig. 4 illustrates the manner of controlling the nail string and feeding the endmost nail of the string into the nail passage of the throat; Fig. 5 is a plan view partly in section taken along the line llof Fig. 1 and omitting the guard plate to the end that the work may be better exhibited; and

Fig. 6 is a view in cross-section along the line 6-6 of Fig. 5 showing a welt attached to anupper and insole.

The machine in which the invention is herein illustrated as embodied comprises a column2 having mounted thereon a fixed head 4. to which is fulcrumed a laterally movable head 6 carrying the fastening inserting instrumentalities of the machine which comprise the driver, .8 and awl 10 .movable in passages formed in the throat 12 secured to the lower end of the movable head 6 in any suitable manner as by screws 13. The fastening inserting instrumentalities further comprise the nail string guide 1a to which the nail string A is led from the reel 16 upon which the nail string is supplied to the machine and a feeding de vice 18 carried by an arm v20 movable to cause said device to engage successively the heads of the nails of the nail string and to feed the endmost nail of the string into the nail and driver passage 21 of the throat.

The work to be operated upon is preferably, and as shown, supported on a horn 22 guide 28. The nail and driver passage 21.

of the. throat 12 is elongated from front to rear of the throat, andthe plane defined by the median line of the passage intersects the roll 24 at or in close proximity to the point of engagement of the roll with the work. The nails of the nail string are introduced into the passage of the throat with the long dimensions of their heads alined with the long dimension ofthe throat passage from which it ensues that the nails when driven are disposed with the long dimensions of their heads arranged transversely of the line of the seam inasmuch as the work feeding movement of the head 6 is in a direction lengthwise of the throat. Moreover, the work is so positioned relatively to the throat by the roll at as to cause the nails to be inserted into the work with their heads projecting from their shanks in a direction transverse to the edge of the welt, as shown in Figs. 5 and 6.

The means for introducing the endmost nail of the nail string into the nail passage of thefthroat will now be described. In the illustrated embodiment of the invention, such means comprises the nail string guide 14 provided wtih recesses a2 and 44 of a size to receive the nail string with the heads of the nails projecting from their shanks in the plane of the recesses. (See Fig. 3.) Altho no the nail string guide is construe d to accommodate a plurality of nail strings, it will be understood that only one of the strings is in operative relation to the nail passage 21 at any time, the guide being shiftable to aline either of the nail strings selectively with the nail passage. The means for shifting the guide constitutes no part of the present invention and is not herein illustrated or described. Secured to the rear side of the nail string guide is a cap 16 which supports spring members 48 and 50 which serve as retainers and engage the rear sidesof the nail strings to maintain them in the recesses. Such members at their lower ends, which are yieldingly urged toward the guide 14, are each provided with parts 52 and 5 1, the former of which engages the exposed side of the nail string below the cap 46 so as to maintain such portioi'i ot' the string in its respective recess. The part 5-1: extends inwardly from the member and is adapted to overlie the head of the endmost nail of the nail string so as to prevent backward or retrograde movement of the string in the guide. As shown, the members and 5-l are formed by making a slit in the lower end of each of the spring members 48 and 50 and by bending the part of each member inwardly within the corresponding recess.

The part 52 is "formed at the forward side of the slit and the part 5% at its rear side so that the guide is adapted to receive the nail strings with their heads projecting rearwardly "from the strip. Such construction of the nail string guide causes the nails to be so positioned in the nail passage 21 of the throat 12 that the heads of the nails when inserted into the work extend from their shanks toward the adj acent edge of the work (see Fig. fter the attachment of an outsole to the welt, upper, and insole to form a complete shoe, it will be seen that little, it any. strain can be exerted on the sides of the nails toward the body of the shoe and that the chief strains tending to separate or rip the welt from the upper and insole will be exerted in a direction from'the adjacent edge of the shoe. The dispositionof the nails is, therefore, such as resist to the greatest degree a strain exerted in the direction in which strains are most likely to be exerted. It will further be observed, however, that a seam of the kind formed by the invention will resist effectively a strain exerted in either direction in the line of the seam. Practi ally all possibility of the attached parts being separated by wear of the shoe is thus eliminated.

The rear wall of the throat passage 21 which is engaged by the heads of the nails is constituted by a movably mounted nail controlling finger 5G pivoted on a stud 58 mounted in a rearwardly projecting portion of the throat 12 and normally pressed inwardly by a spring 60. The finger 56-is formed at its lower end with an inwardly projecting blade (52 which engages the side of the nail from which the head projects during movement of the nail through the nail passage of the throat and the upper end of which inclines upwardly toward the body of the finger as indicated at 64 (see Fig. 2). The head of the nail engages the incline 6 1 whiclris thereby moved rearwardly againstthe resistance of the spring 60. The nail controlling finger maintains the nail in upright position in the nail passage 21 by engagement successively with its shank and head until it has been so far inserted into the work that no further control thereof is necessary to enable it to be properly driven.

The feeding device 18 is shouldered at (56 so as to form a plane surface ('58 disposed opposite to the body of the nail string. A blade projects forwardly of the plane surface 68 and normally lies in the space between the body of the nail string and the opposed wall of the recess. Movement is imparted to the arm 20 to carry the feeding device 18 upwardly to engage the blade 70 over the head of the endmost nail of the string and then downwardly to introduce the nail into the nail passage 21 of the throat 12.

The operation of the head 6 and the fastening inserting instrumentalities carried thereby and the shifting of the nail string guide 1 1 are effected by means :tully illustrated and described in the application of George Goddu and Fred L. Mackenzie here'- inbet'ore referred to. A more complete description of such means in this application is therefore deemed unnecessary.

Although the invention has been hereinbefore described in its application to the attachment of a welt to an upper and insole, it will be understood that the utility of the invention is not restricted thereto, but that the invention may be employed with important advantages for attaching or reinforcing other kinds of work, for example, for the attachment of an outsole to an upper and insole either at the forepart of the shoe or at the heel seat.

The novel method herein disclosed for the p actice of which the illustrated machine is particularly designed although not limited to such use is not claimed in this application since it forms the subject-matter of an application of Philip Fraher, Serial No. 214,128, filed January 28, 1918.

Having fully described our invention, what we desire to secure by Letters Patent of the United States, is:

1. In a machine of the class described, means for inserting fastenings in a shoe and means for guiding the shoe during the insertion of a row of such fastenings, said fastening inserting means comprising means for guiding toinserting position fastenings formed with heads having certain of their dimensions longer than other of their dimensions and saidshoe guiding means and fastening guiding means being relatively constructed and arranged to cause the fastenings when in inserting position to be disposed with the long dimensions of their heads extending transversely of the direction in which the shoe is constrained to move by the guiding means.

2. In a machine of the class described, means for inserting nails formed with elongated heads in a shoe and means for guiding the shoe during the insertion of a row of such nails, said inserting means comprising a throat disposed adjacent to the guiding means and having a guiding passage shaped correspondingly to the heads of the nails and arranged relatively to the shoe guiding means so as to guide the nails with the long dimensions of their heads disposed transversely of the edge of the shoe.

' 8. In a .machine of the class described, means for guiding a shoe during the insertion of a row of nails along the edge of the shoe and means for inserting nails having elongated heads into the shoe, said inserting means comprising a member having a nail receiving passage spaced from the guiding means by a distance substantially equal to the distance between the row of nails and the edge or" the shoe and said guiding means being constructed and arranged relatively to the inserting means so as to cause the nails to be inserted with the long dimensions of their heads disposed transversely of the edge of the shoe.

4. In a machine of the class described, means constructed to enter and support a lasted upper and insole, means for positioning the upper and insole during the inserconstructed and arranged'to cause the nails to be inserted with the long dimensions of their heads disposed transversely of the edge of the upper and insole.

5. In a machine of the class described, means for guiding a shoe during the insertion of a row of fastenings along the edge of the shoe, means for inserting tastenings into the shoe comprising a throat having a transversely elongated passage, said guiding' means and said inserting means being relatively constructed and arranged to cause the shoe to be moved in a direction transverse to the long dimension of said passage, and means for introducing headed nails into said passage by engagement with their heads.

6. In a machine of the class described,

means for guiding a shoe during the insertion of a row of na ls 1n the shoe and means Leona-es for inserting string nails into the shoe with the heads or the nails disposed transversely of the edge of the shoe, said inserting means comprising a throat, means for feeding a shoe past the throat, a nail string guide movable relatively to the throat and operable to conduct the endmost nail of a nail string into the throat, and a driver for forcing the nails into the shoe.

7. In a machine of the class described, means for guiding a shoe during the insertion of a row of nails in the shoe andmeans for inserting string nails into the shoe with the heads of the nails disposed transversely of the edge of the shoe, said inserting means comprising a throat having a passage transversely elongated in a direction transverse to the edge of the shoe, means for imparting a to and fro fovement to the throat, means for feeding the shoe upon movement of the throat, a nail string guide movable relatively to the throat and operable to conduct the endmostnail of a. nailxstring into the throat, and means for feeding the endmost nail of the nail string from said guide into the passage of the throat.

8. In a machine of the class described, means for guiding a shoe during the insertion of a row of nails in the shoe, a throat having a nail guiding passage, and a nail controlling finger mounted in said passage for movement toward and from the opposite wall of the passage in a" plane intersecting the passage and the guiding means.

9. In a machine of the class described, means for guiding a shoe during the insertion of a row of nails in the shoe, means for inserting string nails into the shoe comprising a throat having a nail guiding passage elongated transversely of the edges of the shoe, and means for feeding the endmost nail of the nail string into said passage with its head extending toward the guiding means.

10. In a machineof the class described, fastening inserting mechanism comprising a throat having a passage for the nails, a nail controlling finger mounted in the passage at the rear of the throat for movement toward and from the front wall of the passage, and means for feeding the work in a direction transverse to the direction of movement of the finger.

11. In a machineof the class described, fastening inserting mechanism comprising a throat having a passage for the nails, shoe positioning means spaced from the rear of said throat, means for moving the throat laterally, means associated with the throat for feeding the work upon movement of the throat, and a nail controlling finger mounted at the rear of said-throat within said passage and movable toward and from the front wall of said passage.

12. 111 a machine of theclass described,

fastening inserting mechanism comprisinga movable throat having an elongated fastening receiving passage formed therein with its long dimension disposed transversely of the direction of movement of the throat, means for presenting previously formed fastenings to the throat, and a work engaging member movable with the throat to feed the work upon movement of the throat to cause the formation of a seam of fastenings in the work, the individual members of which are disposed with their long dimensions extending transversely of the line of the seam.

13. In a machine of the class described, fastening inserting mechanism comprising a laterally movable throat having a trans versely elongated passage formed therein with its long dimension disposed transversely of the direction of movement of the throat, means for feeding the work upon movement of the throat, and means for feeding the endmost nail of a nail string into the passage of the throat by engagement with the head of a nail in the string.

14:. In a machine of the class described, fastening inserting mechanism comprising a laterally movable throat having a transversely elongated passage formed therein with its long dimension disposed transversely of the direction of movement of the throat, means for feeding the work upon movement of the throat, a nail string guide provided with arecess of a size to receive the nail string with the heads of the nails projecting from the string in the plane of such recess, and means for feeding the endmost nail of the nail string from the nail string guide into said passage.

15. In a machine of the class described, a nail string guide provided with an opensided recess of a size to receive a nail string with the heads of the nails projecting from the string in a plane passing through the ends of the recess, means for pressing the nail string against the bottom of the recess, and a member having a part lying within the recess and adapted to overlie the head of a nail in the string to prevent backward movement of the string.

16. In a machine of the class described, a

nail string guide provided with an opensided recess of a size to receive a nail string with the heads of the nails projecting from the string in a plane passing through the ends of the recess, and a yieldingly'mounted member having a part co-acting with the exposed side of the nail string to maintain the nail string pressed against the bottom of the recess and having a second part ex tended inwardly from said member and adapted to overlie the head of a nail in the string to prevent backward movement of the string.

17. In a machine of the class described, a nail string guide provided with an opensided recess of a size to receive a nail string with the heads of the nails projecting from the string in a plane passing through the ends of the recess, fastening inserting mechanism, and a feeding device constructed and arranged to engage the head of a nail of the string and feed the endmost nail of the string to the fastening inserting mechanism.

18. In a machine of the class described, means for guiding a lasted upper and insole, means for guiding a welt on the upper and insole, and means for attaching the welt to the upper and insole by a seam of fastenings having elongated heads and having the long dimensions of their heads disposed transversely of the welt.

19. In a string nail inserting machine, a forked nail string retainer having one branch arranged for contact with a lateral surface of a nail string to restrain it against transverse movement, and another branch arranged to overlie the head of a nail in the string to prevent retrograde movement thereof.

20. In a string nail inserting machine, a nail string feeder having its nail string engaging portion shouldered to engage the heads of the successive nails of the nail string, and to provide a surface for contact with a lateral surface of the nail string to position the feeder relatively to the nail string during the feeding movement.

In testimony whereof we have signed our names to this specification.

GEORGE GODDU. FRED L. MACKENZIE. 

